Biology 0610 · IGCSE · Enzymes

Enzymes — practice question

Enzymes function as catalysts.
(a(i))[2]

Describe what the term catalyst means.

(a(ii))[2]

Enzymes are proteins. State the chemical elements present in all proteins.

(b)[6]

Describe and explain the change in lipase percentage activity shown in Fig. 1.1.

(c(i))[2]

Complete the word equation so it shows both the substrate and the products for lipase. [BLANK] lipase → [BLANK] + [BLANK]

(c(ii))[3]

Explain how the body creates a suitable pH for lipase activity.

Worked solution & mark scheme

This 15-mark question has a full step-by-step worked solution and mark scheme. One marking point: a substance that raises the rate of a reaction

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